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. 2023 Feb 28;12(5):1076. doi: 10.3390/plants12051076

Table 6.

In situ analysis of the antimicrobial activity of the vapor phase of Eucalyptus globulus essential oil on white radish.

White Radish
Bacterial Growth Inhibition (%) Gram-Positive Bacteria
Eucalyptus globulus EO (µL/L) B. subtilis E. faecalis S. aureus
62.5 −43.94 ± 1.98 a 76.86 ± 1.43 d 76.79 ± 2.15 d
125 −24.74 ± 2.05 b 54.15 ± 2.47 c 5.67 ± 1.03 a
250 24.92 ± 1.68 d 33.41 ± 1.48 b 13.49 ± 2.59 b
500 −11.92 ± 0.66 c 13.59 ± 2.80 a 56.97 ± 2.22 c
Bacterial Growth Inhibition (%) Gram-negative bacteria
Eucalyptus globulus EO (µL/L) P. flourescens biofilm P. aeroginosa S. enterica Y. enterocolitica
62.5 43.69 ± 1.92 d 8.62 ± 1.06 a 13.33 ± 1.94 a 15.44 ± 2.64 a
125 35.00 ± 2.69 c 24.74 ± 2.10 b 75.29 ± 2.91 d 65.75 ± 1.86 c
250 −54.41 ± 2.13 a 34.08 ± 1.99 c 24.70 ± 2.82 b 33.37 ± 1.47 b
500 25.13 ± 2.04 b 86.79 ± 2.40 d 44.11 ± 1.43 c 91.26 ± 4.58 d
Mycelial Growth Inhibition (%) Yeasts
Eucalyptus globulus EO (µL/L) C. albicans C. glabrata C. krusei C. tropicalis
62.5 5.97 ± 1.36 a 86.82 ± 3.07 d 11.71 ± 1.00 a 35.57 ± 2.04 c
125 64.97 ± 2.56 d −8.00 ± 1.60 a 34.07 ± 2.53 b 8.26 ± 1.35 b
250 13.34 ± 2.19 b 65.96 ± 1.71 c 66.26 ± 2.35 c 55.97 ± 2.97 d
500 54.29 ± 2.50 c 14.69 ± 2.77 b 75.97 ± 2.98 d −24.37 ± 2.90 a
Mycelial Growth Inhibition (%) Microscopic fungi
Eucalyptus globulus EO (µL/L) A. flavus B. cinerea P. citrinum
62.5 76.67 ± 2.77 d 76.06 ± 2.77 d 85.77 ± 1.71 d
125 55.00 ± 2.62 c 56.01 ± 2.34 c 63.74 ± 2.06 c
250 43.37 ± 2.06 b 34.67 ± 2.90 b 33.10 ± 1.44 a
500 14.68 ± 2.05 a 11.70 ± 0.87 a 54.30 ± 2.24 b

One-way ANOVA; individual letters (a–d) in upper case indicate the statistical differences between the concentrations, p ≤ 0.05; the negative values indicate the probacterial activity of the essential oil against the growth of microbial strains.